Sol-Gel法制备纳米TiO_2薄膜及性能研究  

The Preparation of TiO_2 Nano-film by Sol-Gel and Its Properties

作　　者：李维学[1] 吴中立[1] 戴剑锋[1] 王青[1] 李扬[1] 

机构地区：[1]兰州理工大学理学院物理系,甘肃兰州730050

出　　处：《甘肃科学学报》2008年第1期73-75,共3页Journal of Gansu Sciences

基　　金：甘肃省中青年自然科学基金(YS-011-A22-010);甘肃省重点科技公关资助(GS022B52-113)

摘　　要：采用TiO2溶胶,利用溶胶-凝胶技术在玻璃表面制备了TiO2薄膜.用原子力显微镜(AFM)分析了样品的形貌,结构和粒度的分布;用自动椭圆偏振测厚仪测量了薄膜的厚度.研究了TiO2颗粒的催化机理、薄膜上粒子的性能以及薄膜的光催化性能,130 nm左右的TiO2薄膜对甲基橙溶液的降解率达到28.2%.The TiO2 film was prepared by sol-gel technology on a glass plate. Its microstructures, morphology and particle size of the sample were studied by an atom force microscope （AFM）. Its thickness was measured by the elliptical polarized thickness meter. The catalytic principle of TiO2 particles and the particle size distribution of the thin film were studied. The test of photocatalysis which degrades the methyl orange solution by the nano TiO2 films shows that the TiO2 film of about 130 nm thickness can achieve the best photocatalytic degradation of 28.2% for the methyl orange solution.

关 键 词：TIO2薄膜 制备 表征 光催化活性 

分 类 号：TB43[一般工业技术] O484[理学—固体物理]